SU658282A1 - Development working roof support - Google Patents

Development working roof support

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Publication number
SU658282A1
SU658282A1 SU752101829A SU2101829A SU658282A1 SU 658282 A1 SU658282 A1 SU 658282A1 SU 752101829 A SU752101829 A SU 752101829A SU 2101829 A SU2101829 A SU 2101829A SU 658282 A1 SU658282 A1 SU 658282A1
Authority
SU
USSR - Soviet Union
Prior art keywords
roof support
development working
working roof
development
support
Prior art date
Application number
SU752101829A
Other languages
Russian (ru)
Inventor
Василий Федосеевич Завертайло
Original Assignee
Всесоюзный научно-исследовательский и проектно-конструкторский институт добычи угля гидравлическим способом
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Всесоюзный научно-исследовательский и проектно-конструкторский институт добычи угля гидравлическим способом filed Critical Всесоюзный научно-исследовательский и проектно-конструкторский институт добычи угля гидравлическим способом
Priority to SU752101829A priority Critical patent/SU658282A1/en
Application granted granted Critical
Publication of SU658282A1 publication Critical patent/SU658282A1/en

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Description

(54) КРЕПЬ ПОДГОТОВИТЕЛЬНЫХ ВЫРАБОТОК(54) STRONGHOOD OF THE PREPARATORY WORKS

мощью прижймно1й планки со стороны, противоположной расположению зат жекwith the power of the clamping bar on the side opposite to the location of the

Источники информации, прин тые во внимание при экспертизеSources of information taken into account in the examination

1.Авторское свидетельство СССР W286917, кл. Е 21 D, 11.14.68.1. Author's certificate of the USSR W286917, cl. E 21 D, 11.14.68.

2.Справочник по креплению горных выработок, М., Недра, 1972,2. Handbook on fastening of mine workings, M., Nedra, 1972,

с.56, рис.27.p.56, fig.27.

// /// y//Jz :Z i - : L // /// y // Jz: Z i -: L

SU752101829A 1975-02-03 1975-02-03 Development working roof support SU658282A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU752101829A SU658282A1 (en) 1975-02-03 1975-02-03 Development working roof support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU752101829A SU658282A1 (en) 1975-02-03 1975-02-03 Development working roof support

Publications (1)

Publication Number Publication Date
SU658282A1 true SU658282A1 (en) 1979-04-25

Family

ID=20609036

Family Applications (1)

Application Number Title Priority Date Filing Date
SU752101829A SU658282A1 (en) 1975-02-03 1975-02-03 Development working roof support

Country Status (1)

Country Link
SU (1) SU658282A1 (en)

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